Result
This page has no server side at all. The table you paste is parsed by JavaScript inside your own browser, the chart is drawn on a canvas element on your machine, and the export file is assembled locally. Nothing is uploaded, stored or written to any log. You can disconnect from the network after the page has loaded and everything will still work — which is the simplest way to verify the claim yourself.
Facts and limits of this method
| Base unit | Square meter — all other units convert through it |
|---|---|
| 1 hectare | 10,000 m² (100 × 100 meters) |
| 1 acre | 4046.8564224 m² (standard international unit) |
| 1 are | 100 m² — use hectares (1 ha = 100 ares) for that conversion |
| 1 square mile | 2,589,988.110336 m² (about 2.59 km²) |
| Total units | 10 — mm², cm², m², km², ha, acre, ft², in², yd², mi² |
When it misleads you
- The calculation happens in two steps: the value is first converted to square meters, then from square meters to the target unit, so choosing the same unit for "from" and "to" leaves the result unchanged.
- The "are" (100 m²) isn't listed as a separate unit — to convert to ares, use hectares and multiply the result by 100 manually.
- The acre is historically tied to the British system of units (1 acre = 43,560 square feet); some countries have historically had similarly named local units that aren't identical to it.
- Rounding is applied only to the displayed result — internal calculations use the full precision of JavaScript floating-point numbers.
How it is calculated
Each of the ten units has a preset conversion factor to square meters — for example, 1 hectare = 10,000 m², 1 acre = 4046.8564224 m².
The entered value is multiplied by the factor of the selected "from" unit, giving area in square meters.
The area in square meters is divided by the factor of the "to" unit, giving the result in the target unit.
The result is rounded to the chosen number of decimal places and updates instantly whenever the value, units or precision change.
Questions and answers
How do I convert area to ares?
Convert the value to hectares, then multiply the result by 100 (1 hectare = 100 ares) — there's no direct "are" option in the unit list since it's a less common metric unit.
What's the difference between an acre and a hectare?
They're different units: 1 acre ≈ 0.4047 hectares, meaning an acre is about 2.5 times smaller than a hectare.
Can I convert square meters directly to ares of land?
Yes: divide the area in square meters by 100 to get ares, or use the converter to get hectares and multiply by 100.
Is my data sent anywhere?
No, the whole calculation runs in your browser.